1. Oblicz:
A) 3⁻¹ 5⁻² 2⁻³
b) ( 7 kreska ułamkowa 11)⁻¹ (⅓)⁻² (¾)⁻²
c) ( 2,5)⁻¹ (0,4)⁻² ( 1,25)⁻¹
d) (-10)⁻⁵ (-4)⁻² (-2)⁻³
e) (-⅔)⁻² (-⅕)⁻³ (-3⅓)⁻⁴
f) (-1,2)⁻¹ (-0,1)⁻⁵ ( -0,02)⁻⁴
To zadanie jest z podręcznika zadanie 1 strona 27 klasa 2 gimnazjum proszę o pomoc potrzebne na jutro
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1. Oblicz:
A)
3⁻¹ =
= 1/3¹ =
= 1/3
==============
5⁻² =
= 1/5² =
= 1/25
==============
2⁻³ =
= 1/2³ =
=1/8
============================================================
============================================================
b) ( 7 kreska ułamkowa 11)⁻¹ =
= (11/7)¹ =
= 11/7
==============================
(⅓)⁻² =
= (3)² =
= 9
==============================
(¾)⁻² =
= (4/3)² =
= 16/9
= 1 i 7/9
==============================
c)
( 2,5)⁻¹ =
=(25/10)⁻¹ =
= (10/25)¹ =
= 10/25 =
= 2/5
==============================
(0,4)⁻² =
= (4/10)⁻² =
= (10/4)² =
= 100/16 =
= 6 i 4/16 =
= 6 i 1/4
==============================
( 1,25)⁻¹ =
= (125/100)⁻¹ =
= (100/125)¹ =
= 100/125 =
= 4/5
==============================
d) (-10)⁻⁵ =
= (-1/10)⁵ =
= -1/100 000
==============================
(-4)⁻² =
= (-1/4)² =
= 1/16
==============================
(-2)⁻³ =
= (-1/2)³ =
= -1/8
==============================
e)
(-⅔)⁻² =
= (-3/2)² =
= 9/4 =
= 2 i 1/4
==============================
(-⅕)⁻³ =
= (-5)³ =
= -125
==============================
(-3⅓)⁻⁴ =
= (-10/3)⁻⁴ =
= (-3/10)⁴ =
= 81/10 000
==============================
f)
(-1,2)⁻¹ =
= (-12/10)⁻¹ =
= (-10/12)¹ =
= -10/12
==============================
(-0,1)⁻⁵ =
= (-1/10)⁻⁵ =
= (-10)⁵ =
= -100 000
==============================
( -0,02)⁻⁴ =
= (-2/100)⁻⁴ =
= (-50)⁴ =
= 6250000